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My sharp microwave r- 490f runs normally but does not heat Ajay

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  • William Miller
    William Miller May 11, 2010

    When you hit Start to cook, do the inside light and turntable come on?

    Any unusual noises? Is it louder or quieter than usual?

    These answers will help me judge whether it's in the high voltage
    section (magnetron, transformer, or diode) or the control section
    (door switch or control board relay or connection).


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I was using the 5000 scanner on a MAC G5 Pro work fine, but now There is no upgrade for newer Mac Imac what to do?

Posted on Jan 01, 2013

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It's your MAGNATRON, the thing that heats the food. mine did the same thing, luckily it was still under warranty. Good luck

Posted on Oct 31, 2008

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